<template>
  <PageWrapper title="Tree函数操作示例" contentBackground contentClass="p-4">
    <div class="mb-4">
      <a-button @click="expandAll(true)" class="mr-2"> 展开全部 </a-button>
      <a-button @click="expandAll(false)" class="mr-2"> 折叠全部 </a-button>
      <a-button @click="checkAll(true)" class="mr-2"> 全选 </a-button>
      <a-button @click="checkAll(false)" class="mr-2"> 全不选 </a-button>
      <a-button @click="handleLevel(2)" class="mr-2"> 显示到第2级 </a-button>
      <a-button @click="handleLevel(1)" class="mr-2"> 显示到第1级 </a-button>
    </div>
    <div class="mb-4">
      <a-button @click="handleSetCheckData" class="mr-2"> 设置勾选数据 </a-button>
      <a-button @click="handleGetCheckData" class="mr-2"> 获取勾选数据 </a-button>
      <a-button @click="handleSetSelectData" class="mr-2"> 设置选中数据 </a-button>
      <a-button @click="handleGetSelectData" class="mr-2"> 获取选中数据 </a-button>
      <a-button @click="handleGetSelectNode" class="mr-2"> 获取选中节点 </a-button>

      <a-button @click="handleSetExpandData" class="mr-2"> 设置展开数据 </a-button>
      <a-button @click="handleGetExpandData" class="mr-2"> 获取展开数据 </a-button>
    </div>
    <div class="mb-4">
      <a-button @click="appendNodeByKey(null)" class="mr-2"> 添加根节点 </a-button>
      <a-button @click="appendNodeByKey('2-2')" class="mr-2"> 添加在parent3内添加节点 </a-button>
      <a-button @click="deleteNodeByKey('2-2')" class="mr-2"> 删除parent3节点 </a-button>
      <a-button @click="updateNodeByKey('1-1')" class="mr-2"> 更新parent2节点 </a-button>
    </div>
    <BasicTree :treeData="treeData" title="函数操作" ref="treeRef" :checkable="true" />
  </PageWrapper>
</template>
<script setup lang="ts">
import { ref, unref } from 'vue'
import { BasicTree, TreeActionType } from '@/components/Tree/index'
import { treeData } from './data'
import { useMessage } from '@/hooks/web/useMessage'
import { PageWrapper } from '@/components/Page'

const treeRef = ref<Nullable<TreeActionType>>(null)
const { createMessage } = useMessage()

function getTree() {
  const tree = unref(treeRef)
  if (!tree) {
    throw new Error('tree is null!')
  }
  return tree
}

function handleLevel(level: number) {
  getTree().filterByLevel(level)
}

function handleSetCheckData() {
  getTree().setCheckedKeys(['0-0'])
}

function handleGetCheckData() {
  const keys = getTree().getCheckedKeys()
  createMessage.success(JSON.stringify(keys))
}

function handleSetSelectData() {
  getTree().setSelectedKeys(['0-0'])
}

function handleGetSelectData() {
  const keys = getTree().getSelectedKeys()
  createMessage.success(JSON.stringify(keys))
}

function handleGetSelectNode() {
  const keys = getTree().getSelectedKeys()
  const node = getTree().getSelectedNode(keys[0])
  createMessage.success(node !== null ? JSON.stringify(node) : null)
}

function handleSetExpandData() {
  getTree().setExpandedKeys(['0-0'])
}

function handleGetExpandData() {
  const keys = getTree().getExpandedKeys()
  createMessage.success(JSON.stringify(keys))
}

function checkAll(checkAll: boolean) {
  getTree().checkAll(checkAll)
}

function expandAll(checkAll: boolean) {
  getTree().expandAll(checkAll)
}

function appendNodeByKey(parentKey: string | null = null) {
  getTree().insertNodeByKey({
    parentKey: parentKey,
    node: {
      title: '新增节点',
      key: '2-2-2'
    },
    // 往后插入
    push: 'push'
    // 往前插入
    // push:'unshift'
  })
}

function deleteNodeByKey(key: string) {
  getTree().deleteNodeByKey(key)
}

function updateNodeByKey(key: string) {
  getTree().updateNodeByKey(key, {
    title: 'parent2-new'
  })
}
</script>
